Improved fulminate gas-lsghter



UNITED ASTNrE-sd nnNaY njsrrocKwnLL, or BROOKLYN; NEWYonK.

PATENT Querce.

IMPRo'vEo FuLMiNATe GAS-.Llel-ITER. f

Specification forming'pnrt of Letters Patent No. 48,459, datedlunc 27,1565; antedai'crl y l .Tune 17;, `18.65. l

' To all whom it mag/concern: -l Be it'known that I, HENRY B. S'roeKwELn: of No.. SJed'erson Park, in the city of Brook V1y n,`coiinty of Kings` and Stateoi' New York, -haveinvented anew and useful Means ot' Lighting IlluminatingGas, which Iterrn afFulminate GasLighterg? and I do hereby Vdechiue that the followingl is a full, clear, and exact description of the sa me,."reference being had 'to the accompanying drawings, forming partof this speeineauon, in which- Figure l is a central rerticalsection of my fulminate gasligliter, showing its application g in connection with a gasburner and with the cock for turning the gas on and ofi". ,Figa 2 is 1an .elevation oi' the same at right angles t Fig'.

l, with the cap C removed. Fig. 3 is avertical section at 'right angles to Fig. 1 in the plane indicated by the line :l: i

` VSimilar letters'of reference indicate corre.

gcayities, ZI, which, by the act of turning the `plug to open :and close the passage a for l-et-` spending partsinthe several figures.-

This invention consists in 'so applying a ful- 1n1nate,in combination with a gas-burner, and

so combining a hammer or percussion device .with the stop-cockV which supplies gas to the burner that by Vthe act of turning the stopcock to let on the gas the hammer or percussion device will be caused to ignite the fulminate, whiehwill be thus caused to light thegas issuing from the burner.

To enable others to apply my invention to y guse, I will proceed toV describe it with reference to `the accompanying drawings, which represent that construction and mode of applicationwhich, after many experiments, I have found to be, all things considered, the best.

' A-is a metal socket, in which there is a verticalpassage, a, the lower end of which is, y tapped, as shown at b in Fig. 1, to-enable it to be screwed onto a gas-pipe, and into the upper.

end of which isscrewed the gas-burnerc. `This socket is als'obored transversely -to receive the plug-B of the stop-cock, in which there is a passage, d, which rangeswith the passage c. Parallel. with' and very. near the passage a there is also provided in the socket A-nother y passage, e, Fig. 1w'hfich leads from the transversebore g, in which the plug l is received,

.pressforieed the fulminate toward ypercussionof the fulmiua'te by which the gas is lighted.

Below' the transversebore which receives ,the plug B there is provided', in the socket A or in a branch tube, A', attached thereto,.a

straight passage, f, leading upward'to the bore. g for the reception of the fulminate'h, which is made in the form of avsticl: `and inserted into the said passage.

Into the lower end oi' the passage fthereis screwed'a plug orstopper, z', to which there is attached by a spiral"'spring, j, a: piston, K,- which fits into the said passage, and which is caused by the pressure of the said spring to and keep it in contact therewith.

In the plug B, oppositeeach other and ranging with .thepassage f, there are two small ting on tbegasto and shutting it oii from the burner, are caused to cut oft' from the stick h a small portion of fulmiuate and carry itaround to the passage e, where it may be struck by the plunger D and thereby-ignited, one oi' the said cavities always being opposite the plunger I) when the cock is open.`

The plug B should be made of steehto prevent its being too rapidly worn-outin cut-ting The plungerD h as provided directly through it a. small longitudinal passage, '12 through which the flame from the ignited fuhninate may be injected in such manner that it will come in contact with and light the gas issuing from the `burner e.I Near .the lower end of the plunger there isa shoulder, o, which serves as one of the bearings of a spiral spring, p,\vhicl1 is coiled around the plunger and inserted with it into the'passage e, and the upper bearing of which consists of'a gland, m, screwed into the mouth of the saidpassage. The upper end of the plunger, which protrudes through thetop of the socket A, is iirinly secured to the upper end of a'rod, q, which is fitted to slide in a groove, i', in the exterior oi' the socket A, and

the plugB site the rod g when .thecock is open.

the lower l, end of which: enters'a circular` cavity, s, formed' by counter-boring the bore, g

which receives `the plug B. Within this cavitys-there is iitted Vto a square formed on thel `Vplug-B ai. cam, E, having two offsets, tt, ar-

ranged, on opposite sides of its axis. The said 'cavity s is 'cover'd by the capplate C," which is secured in place by a nut,u, screwed onto the plug B, or by a. screw screwing into the said plug, the said cap-.plate and nut or screw also serving to h'oldgthe' plug B and the cam E in place. r;l.he cam is so arranged relativelytedio turn in the direction indicated upon orv 'i incurl it byarrows in Figs.' 2 and 3.

The operation of lighting. the gas by the act `of turning iton issimply as follows: As the cock-plug is turned to the'extent of a quarter' ofarevolution from the closed tothe open' position, it brings thefulminate contained in one of .thecavities l directly under the plunger D,

' and at'the same time causes one of the offsets v t of the cam toli'ft up the rod q and the plunger D andtcompress the spring p, and as the plug arrivesin position to give the full opening to the passage d and bring a cavity, l, opposite the plunger, the highest point of the offset of the cam passesthe lowerextrem.- r

ityof the rod q and allows. the plunger Dto be driven down suddenly. by the spring p uponthe fulminnte, which is thereby ignited. and

2' i ,l l 48H15@ the flame from it, issuingthrough the passage n', meets vthe gas issuing' fromthe burner-and ignitesit.

The fulminate employed should be one which will give out a copious ame when ignited, but act with' the least amount off' explosive force... I prefer to use a compound of fulminating. mercury, saltpeter, black sulphuret'4 of auti` mony, and French chalk, which formsthe suhject of another. application rnade by me for Letters Patent.

Wha-t I 'claim las myin\*'ention, and desire to secure byllettersv Patent, is' 1'. So applyingn fulminate and aliammer, or its equivalenin combination with each ignition of thegas issuing from the burner by theaction of the-hammer, or its equivalent, on the. fulniinate, substantially as herein def scribed. j

2. Socomhining the stop-cockwhichadinits 'the supply of gas to the'burner with. the hanrmer, or its equivalent', as to produce' the action l otV the latter by the act ot' opening the former to'turu en the gas, substantially aslie'rein set forth. v 4' and cam t, combined witheach `other and with the stopcock andv burner, anxl operating substantially as'herein speciedf. 4. AOne'or more'cavities, l l, in the plug'ofthej stopcock operating in relation to a. passage, f, containing ih e'fulminate, and apassagme, containiug'the plunger or hammer D substantially as and for the purpose hereinrlescribed. HENRY B. STOCKWELL.

Witnesses:

JOHN F. BAKER, GEO..W.QREED.'

other and with a gas-burner, asto produce thej 3. The hollow plunger or hammer D, rod q, I 

